51501566056105 has 64 divisors (see below), whose sum is σ = 71721760158720. Its totient is φ = 35108279712000.

The previous prime is 51501566056099. The next prime is 51501566056133. The reversal of 51501566056105 is 50165066510515.

It is a happy number.

It is not a de Polignac number, because 51501566056105 - 2²⁵ = 51501532501673 is a prime.

It is a super-2 number, since 2×51501566056105² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 150441742 + ... + 150783688.

It is an arithmetic number, because the mean of its divisors is an integer number (1120652502480).

Almost surely, 2^{51501566056105} is an apocalyptic number.

51501566056105 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51501566056105 is a deficient number, since it is larger than the sum of its proper divisors (20220194102615).

51501566056105 is a wasteful number, since it uses less digits than its factorization.

51501566056105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343510.

The product of its (nonzero) digits is 675000, while the sum is 46.

The spelling of 51501566056105 in words is "fifty-one trillion, five hundred one billion, five hundred sixty-six million, fifty-six thousand, one hundred five".